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Sorry to keep harping on this subject, but I keep running into trouble! My remaining three corries were doing great, so I picked up three beautiful spotted corries a few weeks ago along with 4 marigold swordtails. I lost one fish from each group within about 4 days of tank entry, but the remaining ones looked very strong and healthy.
Swordtails continue to thrive and pump out babies, but the reamaining two spotted cories are showing the oddest behavior. They stay in the tall plants and perch like little monkies! I rarely see them running along the ground. One of them has gills that are always in overdrive and he floats sideways or upside down. Every time I think he's dead he perks up and starts acting normal again. I stopped using the EI method of fertalizing to keep my nitrates down to around 15 or 20 but that doesnt seem to be making a big difference in their health. I tried feeding extra catfish food, but this has only resulted in a snail surge.
PH is 6.4ish, temp is 74ish. I've notice a possible slight raise in ammonia since I cleaned out the cannister filter last weekend. Its slight enough that it could even be my imagination, but the yellow color doesnt seem as yellow as it should be. Tanks is heavily planted with CO2
The two new corries really seem to be fighting to stay alive. Any ideas on how I can help them?
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